Body-Centered Tetragonal Carbon Synthesis from Rachis Biomass

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Solution Overview

Problem

The experimental synthesis of body-centered tetragonal carbon, known for its mechanical and thermal stability, has not been practically demonstrated, despite theoretical predictions of its fascinating properties.

Innovation Solution

A process involving the use of coconut rachis as a precursor, including sun drying, oven drying, pre-carbonization, pulverization, and carbonization under nitrogen flow, to produce body-centered tetragonal carbon.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If body-centered tetragonal carbon is synthesized from conventional precursors, then the material can be produced, but achieving high crystallinity and sp3-hybridization is difficult

Engineering Contradiction:
Improvecrystallinity and sp3-hybridizationVSAvoidsynthesis difficulty
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent applies parameter changes by systematically varying temperature, pressure, and atmosphere conditions during carbonization. The process uses controlled heating at 1000-2000°C under inert atmosphere to transform the carbon structure, achieving high crystallinity and sp3-hybridization through precise parameter control rather than conventional low-temperature processing

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent utilizes phase transitions by subjecting the precursor material to extreme temperature and pressure conditions that induce structural transformation from amorphous or graphite-like carbon to the body-centered tetragonal phase. The controlled phase transition during carbonization enables the formation of the desired crystalline structure with sp3-hybridized carbon atoms

Inventive Principle:
Principle #36Phase transitions

2Stability of the object's composition

If extreme temperatures and pressures are applied to synthesize body-centered tetragonal carbon, then the desired crystalline structure is achieved, but energy consumption increases

Engineering Contradiction:
Improvemechanical and thermal stabilityVSAvoidenergy consumption
Core Design Contradiction:
Stability of the object's compositionVSUse of energy by moving object

Solution Approach 1:

The patent applies preliminary action by performing pre-carbonization of the biomass precursor before the main high-temperature carbonization step. This preliminary treatment removes volatile components and condenses the carbon structure, reducing the energy required during the subsequent high-temperature phase and making the overall process more energy-efficient

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent utilizes self-service by employing the biomass precursor's own structural components (cellulose, lignin, hemicellulose) as the carbon source and structural template. The inherent molecular structure of the biomass self-organizes during carbonization to form the body-centered tetragonal phase, reducing the need for external energy input and complex processing equipment

Inventive Principle:
Principle #25Self-service

3Reliability

If biomass precursors are used for carbonization, then sustainable and cost-effective material is produced, but achieving high purity carbon structure is challenging

Engineering Contradiction:
Improvesustainability and cost-effectivenessVSAvoidpurity of carbon structure
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent applies taking out by selectively removing impurity elements (oxygen, hydrogen, nitrogen) from the biomass precursor during the high-temperature carbonization process. The prolonged heating at 1000-2000°C under inert atmosphere extracts volatile components and non-carbon elements, leaving behind high-purity carbon with the desired body-centered tetragonal structure

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent utilizes composite materials by combining multiple biomass components (cellulose, lignin, hemicellulose) that work synergistically during carbonization. The complex composite structure of the precursor provides diverse carbon sources and structural templates that facilitate the formation of pure, highly crystalline body-centered tetragonal carbon through controlled decomposition and reorganization

Inventive Principle:
Principle #40Composite materials

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The process yields a highly crystalline, sp3-hybridized carbon with tetragonal phase, exhibiting high mechanical and thermal stability, confirmed by XRD, HRTEM, and Raman analysis, with a density comparable to diamond.

Implementation Method 1

thoroughly drying the rachis material

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 2

pre-carbonizing the dried rachis material

Methodology Applied
Scientific EffectPyrolysis: Pyrolysis

Implementation Method 3

carbonizing the pulverized rachis material

Methodology Applied
Scientific EffectPhase transition: Phase Change

Data Source

PatentUS20250263299A1Hybridized Body-Centered Tetragonal (BCT) Carbon
Publication Date: 2025.08.21 AMRITA VISHWA VIDYAPEETHAM
  • US20250263299A1 patent drawing
  • US20250263299A1 patent drawing
  • US20250263299A1 patent drawing

AI summary

A process for synthesizing body-centered tetragonal carbon involves steps for securing a quantity of palm rachis material, thoroughly drying the rachis material, pre-carbonizing the dried rachis material, pulverizing the pre-carbonized and dried rachis material, and carbonizing the pulverized rachis material.